BUG，解决不了。集思广益。解决思路

<script>     
    var theTable = document.getElementById("tablelsw");   
    var totalPage = document.getElementById("spanTotalPage");   
    var pageNum = document.getElementById("spanPageNum"); 
      
    var spanPre = document.getElementById("spanPre");   
    var spanNext = document.getElementById("spanNext");   
    var spanFirst = document.getElementById("spanFirst");   
    var spanLast = document.getElementById("spanLast");   
      
    var totalPaget = document.getElementById("spanTotalPaget");   
    var pageNumt = document.getElementById("spanPageNumt");   
      
    var spanPret = document.getElementById("spanPret");   
    var spanNextt = document.getElementById("spanNextt");   
    var spanFirstt = document.getElementById("spanFirstt");   
    var spanLastt = document.getElementById("spanLastt");   
      
    var numberRowsInTable = theTable.rows.length;   
    var pageSize = 5;   
    var page = 1;   
      
    //下一页   
    function next()
    {   
      
        hideTable();   
           
        currentRow = pageSize * page;   
        maxRow = currentRow + pageSize;   
        if ( maxRow > numberRowsInTable ) 
            maxRow = numberRowsInTable;   
        for ( var i = currentRow; i<maxRow; i++ ){   
            theTable.rows[i].style.display = '';   
        }   
        page++;   
           
        if ( maxRow == numberRowsInTable ) { 
            nextText(); 
            lastText(); 
        }   
        else{
            nextLink();
        }        
   
        preLink(); 
        firstLink();
    }   
      
    //上一页   
    function pre()
    {   
      
        hideTable();   
           
        page--;                 
        currentRow = pageSize * page;   
        maxRow = currentRow - pageSize;   
        if ( currentRow > numberRowsInTable ) 
       currentRow = numberRowsInTable;   
        
    for ( var i = maxRow; i<currentRow; i++ )
    {   
            theTable.rows[i].style.display = '';   
        }   
           
           
        if ( maxRow == 0 )
    { 
        preText(); 
        firstText(); 
    }   
  
    preLink();
        nextLink();   
        lastLink();   
    }   
      
    //第一页   
    function first(){   
        hideTable();   
        page = 1;   
        for ( var i = 0; i<pageSize; i++ ){   
            theTable.rows[i].style.display = '';   
        }   
        showPage();   
           
        preText();   
        nextLink();   
        lastLink();   
    }   
      
    //最后一页   
        function last()
    {   
            hideTable();   
            page = pageCount();   
            currentRow = pageSize * (page - 1);   
            for ( var i = currentRow; i<numberRowsInTable; i++ )
        {   
                    theTable.rows[i].style.display = '';   
            }   
            showPage();   
           
            preLink();   
            nextText();   
            firstLink();   
        }   
      
       function hideTable()
    {   
            for ( var i = 0; i<numberRowsInTable; i++ )
        {   
                    theTable.rows[i].style.display = 'none';   
            }   
        }   
      
        function showPage()
    {   
            pagepageNum.innerHTML = page;   
            pagepageNumt.innerHTML = page;   
        }   
      
    //总共页数   
    function pageCount()
    {   
            var count = 0;   
            if ( numberRowsInTable%pageSize != 0 ) count = 1;    
            return parseInt(numberRowsInTable/pageSize) + count;   
    }   
    function pageNow()
    {   
            var nowpage = 0;   
            if ( numberRowsInTable%pageSize != 0 ) count = 1;    
            return parseInt(numberRowsInTable/pageSize) + count;   
    }
      
    //显示链接   
    function preLink()
    { 
        spanPre.innerHTML = "<a href='javascript:pre();'>上一页</a>"; 
        spanPret.innerHTML = "<a href='javascript:pre();'>上一页</a>";
    }   
    function preText()
    { 
        spanPre.innerHTML = "上一页";
        spanPret.innerHTML = "上一页"; 
    }   
      
    function nextLink()
    { 
        spanNext.innerHTML = "<a href='javascript:next();'>下一页</a>"; 
        spanNextt.innerHTML = "<a href='javascript:next();'>下一页</a>";
    }   
    function nextText()
    { 
        spanNext.innerHTML = "下一页"; 
        spanNextt.innerHTML = "下一页";
    }   
      
    function firstLink()
    {
        spanFirst.innerHTML = "<a href='javascript:first();'>第一页</a>"; 
         spanFirstt.innerHTML = "<a href='javascript:first();'>第一页</a>";
    }   
    function firstText()
    { 
        spanFirst.innerHTML = "第一页"; 
        spanFirstt.innerHTML = "第一页";
    }   
      
    function lastLink()
    { 
        spanLast.innerHTML = "<a href='javascript:last();'>最后一页</a>"; 
        spanLastt.innerHTML = "<a href='javascript:last();'>最后一页</a>";
    }   
    function lastText()
    { 
        spanLast.innerHTML = "最后一页"; 
        spanLastt.innerHTML = "最后一页";
    }   
      
    //隐藏表格   
    function hide()
    {   
            for ( var i = pageSize+1; i<numberRowsInTable; i++ )
        {   
                    theTable.rows[i].style.display = 'none';   
            }   
           
               totalPage.innerHTML = pageCount();   
            pageNum.innerHTML = '1';   
           
            totalPaget.innerHTML = pageCount();   
            pageNumt.innerHTML = '1';   
           
        firstLink();
        preLink();
            nextLink();   
            lastLink();   
    }   
      
hide();   
</script>